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Old 30th November 2012, 12:18 PM   #1
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Default New H2000 midwoofers

Hi!

I would like to point your attention to some new handcrafted loudspeakers that are being produced in my country. The company name is Hangszoro 2000 (translates to Loudspeaker 2000). I know that sounds a bit cheap but let me tell you the story behind it.

In the past we had a huge factory called Videoton that produced a wide variety of loudspeakers, speakerboxes, TV sets, etc. When in the 90's the factory dissolved someone bought their speaker inventory plus the production line, and made significant improvements to the drivers, and started to sell them for DIY. This is H2000.

Now they have a pretty agile colleague who took the opportunity to work on his own set of drivers. Only a few available yet, but the work looks great so far, especially given the price point of 23 Eur or $30.

Click here to see the webpage

17R626A
Click the image to open in full size.
Click the image to open in full size.

Green is 2nd harmonic, red is 3rd harmonic. Please note the distortion plot is represtented in percent, that you can see on the right of the plot. It's in the 0.2-0.6% region which corresponds to approx. -42 / -54dB...
Click the image to open in full size.

CSD waterfall plot.
Click the image to open in full size.

PP cone
Sensitivity: 88dB@1W*1m
40-5000Hz
RMS Power (IEC268-5): 60W
Music power: 100W
Impedance: 8Ω
Voice coil: 25mm
Voice coil height: 19mm
Airgap height: 5mm
Xmax: +-7mm
Xmech: +-10mm
Le: 508uH @ 947Hz
Re=7,117 Ω
B*l=6,665 Tm
Sd=134 sq.cm
Cms=1,856 mm/N
Mms=14 g
Rms=1,278 kg/s
fs=31,223 Hz
Vas=47,329 liter
Qms=2,15
Qes=0,440
Qts=0,365
EBP=71

Last edited by baskiria; 7th December 2012 at 07:02 PM.
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Old 30th November 2012, 02:13 PM   #2
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WRT the xmax and gap height, is that correct? Not sure but possibly an error there. Magnet looks very small for that Qts, that is IF size really says anything.
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Old 30th November 2012, 05:11 PM   #3
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You are right, I will ask them what's wrong here. The magnet is decent, the image is disrtorted... I will get mine and post proper pics soon.

Anyone interested to try?

Edit: I think xmax is not +-, or +-3,5mm... same for xmech...

Last edited by baskiria; 30th November 2012 at 05:15 PM.
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Old 1st December 2012, 04:06 PM   #4
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It's strange no one shows any interest...
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Old 1st December 2012, 04:19 PM   #5
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HD looks really high...
Am I seeing this correctly?
That can't be right.
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Old 1st December 2012, 04:22 PM   #6
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HD is in percent. It's very low in fact. See the percentage scale on the right. It's in the 0.2-0.6% region which is -42 / -54dB...

Last edited by baskiria; 1st December 2012 at 04:26 PM.
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Old 1st December 2012, 04:44 PM   #7
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Whoah....ok, they shouldn't overlay that graph!
I'm sure my mistake will be made by others.
I thought it looked strange, especially with the peaking way up top.
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Old 1st December 2012, 08:04 PM   #8
Jonasz is offline Jonasz  Sweden
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That's actually pretty nice performing drivers.
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Old 1st December 2012, 08:13 PM   #9
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Quote:
Originally Posted by Melo theory View Post
Whoah....ok, they shouldn't overlay that graph!
I'm sure my mistake will be made by others.
I thought it looked strange, especially with the peaking way up top.
Yes, you are right, it can be misleading on the first sight. I edited the first post so it makes it more clear how to read the distortion plot.
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Old 1st December 2012, 08:17 PM   #10
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Can't wait to get my pair and try. I actually had a fullrange version of this (as that exist too) which sounded pretty good but I am more interested in 2 way design than fullrange stuff. I think I'll go with a SEAS 27TBCGF and cross it at around 1,8k with LR4. That might take care of that very mild energy storage at 2k of the woofer. Not like it was something to be worried about, but anyways...
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